Combined liquid-fuel control for motor-cars and grade-meters.



J. G. WALLMANN.

COMBINED LIQUID FUEL CONTROL FOR MOTOR CARS AND GRADE METERS. APPLICATION FILED DEG.3,1913.

1,120,772. Patented Dec. 15, 1914,

- Fgil- IN V EN TOR.

ATTORNEY WITNESSES UNITED STATES PATENT OFFICE.

JOHANN G. WALLMANN, OF OAKLAND, CALIFORNIA.

OOIIBINBD LIQUID-FUEL CONTROL FOR MOTOR-CABS AND GRADE-METERS."

To all whom it ma concern: Be it known t at I, JOHANN G. Warm.- MANN, a citizen of the United States, resid- -ing at Oakland, in the county of Alameda and State of California, have invented-certain new and useful Improvements in Combined Li uid-Fuel Controls for Motor-Cars and Gra e-Meters, of which the following is a specification.

My invention relates to improvements in combined liquid-fuel controls for motor-cars and grade-meters.

The object of my invention is to provide a device for motor-carsiwhich is particularly designed to effect saving in liquid-fuel as used therein, and also to give the engine therein greater power and speed, less carbon, and a lower temperature, while permitting the use of a heavier gasolene than is usually used in the operation of such cars.

Said device is also designed to relieve to a is 5 seated at the wheel without touching the great extent the wear and tear on the brakes while used on hills. It automatically adjusts the proper mixture of fuel when ascending or descending grades, while on steep carbureter. The device will 've the operator the pitch of the grade wl iile ascending or descending the same, and he can also ascertain the nature of the grade the car can climb without changing gears. As the adjustment of the carbureter is good only for the time it is made, the slightest change in mngement,of' parts shown in the acameee d w de-sribed the the weather, temperature, altitude, or in the grade of gasolene, will resultin the mixture becoming too weak or too rich; this disadvantage s overcome in my device, and the pro er way to regulate the air supply is .whi e the car is traveling, and b the use of said instrument the mixture changed.

My invention consists in the combination can e instantly Specification of Letters Patent.

rod and constitutes turning the thumb screw 1 threads ofpart 2 cause arm 3 to be'earriedv Patented Dec. 15, 1914.

Application filed December 3, 1913. Serial No. 804,436.

lowing specification and claimed in the appended claims.

Referring to the accompanying drawings: Figure 1 is a side elevation of my apparatus; Fig. 2 is a section on the line B-B of Fig. 1; Fig. 3 is a plan view of the air-regu lating chamber detached; Fig. 4 is a front View of the grade-meter; Fig. 5 is a sectional view of said grade-meter.

In said figures 1 represents a hand adjusting-wheel secured to the adjusting rod 2, and which rod is mounted in a bearing therefor secured to the motor-car as shown. An arm 3 is engaged by the threads of said art of the movable valve-piece or interna casing having opening 25. A wire screen 4 is mounted in the branch of movable valve-piece or external casing 6. An arm 7 is screwed to external casing 6 andis linked to piston 15 of dash pct 14, which is pivoted to frame 37 the said frame being screwed to part of the car as shown. A rod 9 is'secured in the lower side of casing 6 and penetrates weight 10 suspended thereby. The said rod 9 has a collar 12 supporting a spring 11 engaging and upholding said weight 10. A11 elbow 36 is secured to an extension of casing 26 and has a branch or nipple 8 for hose 20 secured to the nipple by ring or clamp 21. Said hose is also secured to manifold 49 by means of piece or nipple 47 Asimilar ring or clamp 21 secures said hose to nipple 47.

A grade-meter 16 has a guide tube 17 containin wire 18 connected to rod '9 by screw 22. T e said grade-meter contains glass and indicator-needle 34 for registration. An indicator card in said meter is designated 31 and said meter has a back preferably of metal 32. The said meter has also anindicator-guide- 33. A valve-chamber 35 is contained in said casing 26.

' Guide brackets 19 have holes 24 for lock screws and are secured to fiber-insulation 46 v as shown. Wires 40 and 41 are intended to cut out spark coils, Binding screws 42 and 45 secure said wires 40 and'41 as shown. Spring contacts are shown at 43 and Y The device is secured to the dash board of a motor-car as shown in Fig. 1. It is then connectedto the manifold by means of the rubber hose20 and the pipe ni ple 47 By 0 ockwise the the car on grades.

level ground again the pendulum automat1 slowly forward, causing the valve part 26 to revolve in casing 6. This forward movement of casing 26 causes port 25 to open and the farther the movement of said part 26 advances the larger the port resulting. In the way set forth, air may be allowed to enter the manifold 49. By turning the thumbscrew counter clockwise the port may be closed. The car is now ready to start with the device in the last mentioned position.

As no air can now enter the manifold by means of the instrument such position allows a rich mixture of liquid fuel for starting. As the carbureter adjustment is good only for the time it is made, the slightest change in weather, temperature, altitude or gasolene occurring will cause the mixture used to betome too thin or too rich. For these reasons the operator will adjust the carbureter to produce the mixture slightly rich. Having started the engine, the proper way to regulate the mixture is while the car is running on a level road, when by turning the thumbscrew clockwise the port 25 may be opened. The operator can ascertain by the running of the engine when he hasor is allowing the proper amount of air for the proper mixture for running. Thus the car can be adjusted for smooth and economical running on level roads. The air is drawn in through the fine screen 4 into valve chamber 35; then through the elbow 36; through hose connection 8; through hose 20, then through the nipple 47 into the manifold 49. The car being adjusted for level roads, on climbing a hill the air is automatically shut off, as it is necessary to have a rich mixture forsmooth and steady running of the car in climbing hills.

The automatic device operates in the following way: On ascending a hill, the pendulum will move in a direction as may be marked Up hill, that is the steeper the hill to be climbed, the farther it will recede, the same'always remaining in a perpendicular position. As the pendulum moves in said direction, the valve piece 6 turns, closing the port 25 or partly closing it, the-degree of closing depending on the steepness of the grade. The closing of said port and the cutting off of the compensating air, will cause the engine to draw a richer mixture as is necessary for smooth and easy running of When the car reaches cally turns the valve-piece 6 so that the port 25 is again in its original adjustment. The machine on descendinga grade causes the pendulum to move in a direction as may be marked Down hill, this movement causing the port 'to open; and on a steep grade, the large volume of air entering through the val einto the manifold relieves the suction 'on the-carbureter, thereby drawing in pure. air as the machine is down and using the engines own compression as a brake. The forward movement of the pendulum causes the weight 10 to come in contact with the spring contact 43, forcing it out of contact with part 4 L, thus opening the magneto or battery circuit to the spark plugs. The bumper 48 is insulated. The part 14 is attached to the valve-piece 6 by the arm 7, this dash pot keeping the pendulum from swinging which may be caused by a jar in the car, caused by it coming in contact with a rut in running. Spring 11 takes off all the jar upwardly or downwardly from the weight on the rod 9. The small steelwire 18 connects with the indicator finger 34, on the grade-meter, 16. In the two holes 24 of the combination brackets and guide arms 19 may be set screws to lock the pendulum.

1. In a motor-car in combination with a manifold, a turnable shaft, an internal casing having an opening and an arm movably engaging said shaft, an external casing loosely inclosing said internal casing, a pendulum suspended from the base of said external casing, an elbow having a nipple secured to one end ofsaid-internal casing, said casing opening into said elbow, a hose connected to said nipple and leading to said manifold, a movable arm connected to one end of said external casing, a dash pot, with piston joined to said movable arm and penetrating said dash pot and adapted to work therein, and a fixed frame in pivotal con"- nection with the lower end of said dash pot.

2. In a motor-car in combination with a manifold, a turnable shaft,|an internal casing having an opening and an arm movably engaging said shaft, an external casing loosely inclosing said internal casing and having an open lateral branch, a pendulum suspended from the base of said external casing, means opening from said external casing to said manifold and connecting said casing with said manifold for the transmission of substance between said parts, a movable arm connected to one .end of said external casing, a dash pot, with piston joined to said movable arm and penetrating 3. In a motor-car in combination with a manifold, a turnable shaft, an internal casing having an opening and an arm movably engaging the said shaft, an external casing loosely inclosing gaid internal casing and having an open ateral branch provided with a screen, a pendulum suspended from the base of said external casing, means connecting said external casing with said manifold forthetransmission of substance'between said parts, a movable armconnected to one endof said external casing, a dash zoternal casing ha pot, with a piston joined to said movable arm and penetrating said dash pot and adapted to work therein, and a fixed frame in pivotal connection with the lower end of said dash pot. I

4. In a motor-car, a turnable shaft, an internal casing having1 ope and an arm movably engaging t e said s aft, an external casing having a side opening and loosely inclosing said internal casing, a ndulum suspended from the base of sai external caslng a movable arm connected to one end of said external casing, a dash ot having a piston connected to said mova le arm, a fixed frame in pivotal connection with the lower end of said dash pot, and means for transmitting fluid from said internal cas- 1ng. l 5. In a motor-car, a turnable shaft, an invingl'openin and an arm movably engagmg't e said aft, an external casing having a side opening and loosely inclosing said internal a pendulum suspended from the base 0? said extemal cas a movable arm connected to one end of said external casing, a dash pot having a piston connected to said movable arm, a ed frame pivotal connection with the lower end of saiiiidash pot, means for transmitting'fluid said internal casing,fiber insulation guide brackets endwise connected to said fiber insulation, spring contacts secured to sides of said fiber insulation, current-conducting means in connection with said s ring contacts, a grade-meter including a ongitudinally-movable guide and needle, and means connecting said 'grade meter with the rod of said pendulum.

6. In a motor-car in combination with a manifold, a turnable shaft, an internal casing having a side opening and an end open 4 and leading to said manifold, a mova le arm connected to one end of'said external casing, a dash ot having a piston connected tosaid movab e arm, a fixed e in pivotal connection with the lowerend of said dash pot, a ade-meter havin a loiigitudinally-movab e guide and n e, means connecting said grade-meter with the rod of saidpendulum, fiber insulation, 'de brackets intermediatel provided with oles and endwise connected to said fiber insulation, a bent spring-contact secured to one side of said fiber insulation, a spring-contact having a bent end endwise' and movably connected to the other side of said fiber insulation, current-conducting means in connection with said sp -contacts, and an arm extending from said internal casing and engaging said turnable shaft.

In testimon whereof I aflix my signature in presence 0 two witnesses.

JOHANN G. WALLMANN.

Witn:

Guonenu Bowns, Hanna! 0. Wnsxurs. 

